What is malaria disease?Malaria is a vector-borne life-threatening infectious disease. It is caused by protozoan parasites from the Plasmodium family and spread by the mosquito of the genus Anopheles. Individuals with the disease have repeated bouts of high fever, chills, shivering and flu-like symptoms. According to the World Health Organization, in 2012 an estimated 207 million clinical cases of malaria occurred worldwide resulting in 627,000 deaths.
The disease is mosquito-borne and can only be transmitted from an affected person to another healthy person by mosquito bite. In some rare cases improperly sterilized injection needles had spread the infection. Malaria disease predominantly affects the red blood cells. The parasites enter the erythrocytes for their growth process. After undergoing development and asexual multiplication, they cause the death of the infected host cell and re-enter the bloodstream to infect more cells. Plasmodium species, P. falciparum, P. vivax, P. ovale and P. malariae are known to affect and infect.
The babies of pregnant women affected by this infection, have low birth weight and decreased survivability.
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|Image of malaria vector|
Anopheles stephensi mosquito
- Definition by thefreedictionary.com: "It is defined as a serious infectious disease spread by certain mosquitoes. It is most common in tropical climates. It is characterized by recurrent symptoms of chills, fever, and an enlarged spleen."
- Definition by medterms.com: "An infectious disease caused by protozoan parasites from the Plasmodium family that can be transmitted by the bite of the Anopheles mosquito or by a contaminated needle or transfusion."
- Definition by merriam-webster.com: "a serious disease that causes chills and fever and that is passed from one person to another by the bite of mosquitoes."
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Image author:Jim Gathany, CDC.
Image license: Public domain
Current topic in health and fitness tips: What is malaria disease and its definition.